* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
+ * modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
+ * Lesser General Public License for more details.
*
- * You should have received a copy of the GNU Library General Public
+ * You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
+
+/*
+ * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
+ * file for a list of people on the GTK+ Team. See the ChangeLog
+ * files for a list of changes. These files are distributed with
+ * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
+ */
+
+#include <stdarg.h>
#include <string.h>
+#include <stdlib.h>
+
#include "gtkcontainer.h"
#include "gtkprivate.h"
#include "gtksignal.h"
#include "gtkmain.h"
-#include <stdarg.h>
-
+#include "gtkwindow.h"
enum {
ADD,
REMOVE,
CHECK_RESIZE,
- FOREACH,
FOCUS,
SET_FOCUS_CHILD,
LAST_SIGNAL
ARG_0,
ARG_BORDER_WIDTH,
ARG_RESIZE_MODE,
- ARG_CHILD
+ ARG_CHILD,
+ ARG_REALLOCATE_REDRAWS
};
typedef struct _GtkChildArgInfo GtkChildArgInfo;
guint seq_id;
};
-static void gtk_container_base_class_init (GtkContainerClass *klass);
-static void gtk_container_class_init (GtkContainerClass *klass);
-static void gtk_container_init (GtkContainer *container);
-static void gtk_container_destroy (GtkObject *object);
-static void gtk_container_get_arg (GtkObject *object,
- GtkArg *arg,
- guint arg_id);
-static void gtk_container_set_arg (GtkObject *object,
- GtkArg *arg,
- guint arg_id);
-static void gtk_container_add_unimplemented (GtkContainer *container,
- GtkWidget *widget);
-static void gtk_container_remove_unimplemented (GtkContainer *container,
- GtkWidget *widget);
-static void gtk_container_real_check_resize (GtkContainer *container);
-static gint gtk_container_real_focus (GtkContainer *container,
- GtkDirectionType direction);
-static void gtk_container_real_set_focus_child (GtkContainer *container,
- GtkWidget *widget);
-static gint gtk_container_focus_tab (GtkContainer *container,
- GList *children,
- GtkDirectionType direction);
-static gint gtk_container_focus_up_down (GtkContainer *container,
- GList *children,
- GtkDirectionType direction);
-static gint gtk_container_focus_left_right (GtkContainer *container,
- GList *children,
- GtkDirectionType direction);
-static gint gtk_container_focus_move (GtkContainer *container,
- GList *children,
- GtkDirectionType direction);
-static void gtk_container_children_callback (GtkWidget *widget,
- gpointer client_data);
-static void gtk_container_show_all (GtkWidget *widget);
-static void gtk_container_hide_all (GtkWidget *widget);
+static void gtk_container_base_class_init (GtkContainerClass *klass);
+static void gtk_container_class_init (GtkContainerClass *klass);
+static void gtk_container_init (GtkContainer *container);
+static void gtk_container_destroy (GtkObject *object);
+static void gtk_container_get_arg (GtkObject *object,
+ GtkArg *arg,
+ guint arg_id);
+static void gtk_container_set_arg (GtkObject *object,
+ GtkArg *arg,
+ guint arg_id);
+static void gtk_container_add_unimplemented (GtkContainer *container,
+ GtkWidget *widget);
+static void gtk_container_remove_unimplemented (GtkContainer *container,
+ GtkWidget *widget);
+static void gtk_container_real_check_resize (GtkContainer *container);
+static gboolean gtk_container_real_focus (GtkContainer *container,
+ GtkDirectionType direction);
+static void gtk_container_real_set_focus_child (GtkContainer *container,
+ GtkWidget *widget);
+static gboolean gtk_container_focus_tab (GtkContainer *container,
+ GList *children,
+ GtkDirectionType direction);
+static gboolean gtk_container_focus_up_down (GtkContainer *container,
+ GList **children,
+ GtkDirectionType direction);
+static gboolean gtk_container_focus_left_right (GtkContainer *container,
+ GList **children,
+ GtkDirectionType direction);
+static gboolean gtk_container_focus_move (GtkContainer *container,
+ GList *children,
+ GtkDirectionType direction);
+static void gtk_container_children_callback (GtkWidget *widget,
+ gpointer client_data);
+static void gtk_container_show_all (GtkWidget *widget);
+static void gtk_container_hide_all (GtkWidget *widget);
+static gint gtk_container_expose (GtkWidget *widget,
+ GdkEventExpose *event);
+
+
+static gchar* gtk_container_child_default_composite_name (GtkContainer *container,
+ GtkWidget *child);
if (!container_type)
{
- GtkTypeInfo container_info =
+ static const GtkTypeInfo container_info =
{
"GtkContainer",
sizeof (GtkContainer),
vadjustment_key_id = g_quark_from_static_string (vadjustment_key);
hadjustment_key_id = g_quark_from_static_string (hadjustment_key);
- gtk_object_add_arg_type ("GtkContainer::border_width", GTK_TYPE_ULONG, GTK_ARG_READWRITE, ARG_BORDER_WIDTH);
+
+ object_class->get_arg = gtk_container_get_arg;
+ object_class->set_arg = gtk_container_set_arg;
+ object_class->destroy = gtk_container_destroy;
+
+ widget_class->show_all = gtk_container_show_all;
+ widget_class->hide_all = gtk_container_hide_all;
+ widget_class->expose_event = gtk_container_expose;
+
+ class->add = gtk_container_add_unimplemented;
+ class->remove = gtk_container_remove_unimplemented;
+ class->check_resize = gtk_container_real_check_resize;
+ class->forall = NULL;
+ class->focus = gtk_container_real_focus;
+ class->set_focus_child = gtk_container_real_set_focus_child;
+ class->child_type = NULL;
+ class->composite_name = gtk_container_child_default_composite_name;
+
+ gtk_object_add_arg_type ("GtkContainer::border_width", GTK_TYPE_UINT, GTK_ARG_READWRITE, ARG_BORDER_WIDTH);
gtk_object_add_arg_type ("GtkContainer::resize_mode", GTK_TYPE_RESIZE_MODE, GTK_ARG_READWRITE, ARG_RESIZE_MODE);
gtk_object_add_arg_type ("GtkContainer::child", GTK_TYPE_WIDGET, GTK_ARG_WRITABLE, ARG_CHILD);
+ gtk_object_add_arg_type ("GtkContainer::reallocate_redraws", GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_REALLOCATE_REDRAWS);
container_signals[ADD] =
gtk_signal_new ("add",
GTK_RUN_FIRST,
- object_class->type,
+ GTK_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (GtkContainerClass, add),
- gtk_marshal_NONE__POINTER,
+ gtk_marshal_VOID__OBJECT,
GTK_TYPE_NONE, 1,
GTK_TYPE_WIDGET);
container_signals[REMOVE] =
gtk_signal_new ("remove",
GTK_RUN_FIRST,
- object_class->type,
+ GTK_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (GtkContainerClass, remove),
- gtk_marshal_NONE__POINTER,
+ gtk_marshal_VOID__OBJECT,
GTK_TYPE_NONE, 1,
GTK_TYPE_WIDGET);
container_signals[CHECK_RESIZE] =
gtk_signal_new ("check_resize",
GTK_RUN_LAST,
- object_class->type,
+ GTK_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (GtkContainerClass, check_resize),
- gtk_marshal_NONE__NONE,
+ gtk_marshal_VOID__VOID,
GTK_TYPE_NONE, 0);
- container_signals[FOREACH] =
- gtk_signal_new ("foreach",
- GTK_RUN_FIRST,
- object_class->type,
- GTK_SIGNAL_OFFSET (GtkContainerClass, foreach),
- gtk_marshal_NONE__C_CALLBACK,
- GTK_TYPE_NONE, 1,
- GTK_TYPE_C_CALLBACK);
container_signals[FOCUS] =
gtk_signal_new ("focus",
GTK_RUN_LAST,
- object_class->type,
+ GTK_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (GtkContainerClass, focus),
gtk_marshal_ENUM__ENUM,
GTK_TYPE_DIRECTION_TYPE, 1,
container_signals[SET_FOCUS_CHILD] =
gtk_signal_new ("set-focus-child",
GTK_RUN_FIRST,
- object_class->type,
+ GTK_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (GtkContainerClass, set_focus_child),
- gtk_marshal_NONE__POINTER,
+ gtk_marshal_VOID__OBJECT,
GTK_TYPE_NONE, 1,
GTK_TYPE_WIDGET);
- gtk_object_class_add_signals (object_class, container_signals, LAST_SIGNAL);
-
- object_class->get_arg = gtk_container_get_arg;
- object_class->set_arg = gtk_container_set_arg;
- object_class->destroy = gtk_container_destroy;
-
- /* Other container classes should overwrite show_all and hide_all,
- * for the purpose of showing internal children also, which are not
- * accessable through gtk_container_foreach.
- */
- widget_class->show_all = gtk_container_show_all;
- widget_class->hide_all = gtk_container_hide_all;
-
- class->add = gtk_container_add_unimplemented;
- class->remove = gtk_container_remove_unimplemented;
- class->check_resize = gtk_container_real_check_resize;
- class->foreach = NULL;
- class->focus = gtk_container_real_focus;
- class->set_focus_child = gtk_container_real_set_focus_child;
- class->child_type = NULL;
}
GtkType
g_return_val_if_fail (container != NULL, 0);
g_return_val_if_fail (GTK_IS_CONTAINER (container), 0);
- class = GTK_CONTAINER_CLASS (GTK_OBJECT (container)->klass);
+ class = GTK_CONTAINER_GET_CLASS (container);
if (class->child_type)
slot = class->child_type (container);
else
void
gtk_container_add_with_args (GtkContainer *container,
GtkWidget *widget,
+ const gchar *first_arg_name,
...)
{
g_return_if_fail (container != NULL);
GSList *info_list = NULL;
gchar *error;
- va_start (var_args, widget);
+ va_start (var_args, first_arg_name);
error = gtk_container_child_args_collect (GTK_OBJECT_TYPE (container),
&arg_list,
&info_list,
- &var_args);
+ first_arg_name,
+ var_args);
va_end (var_args);
if (error)
void
gtk_container_child_set (GtkContainer *container,
GtkWidget *child,
+ const gchar *first_arg_name,
...)
{
va_list var_args;
g_return_if_fail (GTK_IS_WIDGET (child));
g_return_if_fail (child->parent != NULL);
- va_start (var_args, child);
+ va_start (var_args, first_arg_name);
error = gtk_container_child_args_collect (GTK_OBJECT_TYPE (container),
&arg_list,
&info_list,
- &var_args);
+ first_arg_name,
+ var_args);
va_end (var_args);
if (error)
gtk_container_child_args_collect (GtkType object_type,
GSList **arg_list_p,
GSList **info_list_p,
- gpointer var_args_p)
+ const gchar *first_arg_name,
+ va_list var_args)
{
return gtk_args_collect (object_type,
container_child_arg_info_ht,
arg_list_p,
info_list_p,
- var_args_p);
+ first_arg_name,
+ var_args);
}
gchar*
container->border_width = 0;
container->need_resize = FALSE;
container->resize_mode = GTK_RESIZE_PARENT;
+ container->reallocate_redraws = FALSE;
container->resize_widgets = NULL;
}
container = GTK_CONTAINER (object);
if (GTK_CONTAINER_RESIZE_PENDING (container))
- {
- container_resize_queue = g_slist_remove (container_resize_queue, container);
- GTK_PRIVATE_UNSET_FLAG (container, GTK_RESIZE_PENDING);
- }
- gtk_container_clear_resize_widgets (container);
+ gtk_container_dequeue_resize_handler (container);
+ if (container->resize_widgets)
+ gtk_container_clear_resize_widgets (container);
- gtk_container_foreach (container,
- (GtkCallback) gtk_widget_destroy, NULL);
+ gtk_container_foreach (container, (GtkCallback) gtk_widget_destroy, NULL);
if (GTK_OBJECT_CLASS (parent_class)->destroy)
(* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
switch (arg_id)
{
case ARG_BORDER_WIDTH:
- gtk_container_border_width (container, GTK_VALUE_ULONG (*arg));
+ gtk_container_set_border_width (container, GTK_VALUE_UINT (*arg));
break;
case ARG_RESIZE_MODE:
gtk_container_set_resize_mode (container, GTK_VALUE_ENUM (*arg));
break;
+ case ARG_REALLOCATE_REDRAWS:
+ gtk_container_set_reallocate_redraws (container, GTK_VALUE_BOOL (*arg));
+ break;
case ARG_CHILD:
gtk_container_add (container, GTK_WIDGET (GTK_VALUE_OBJECT (*arg)));
break;
switch (arg_id)
{
case ARG_BORDER_WIDTH:
- GTK_VALUE_ULONG (*arg) = container->border_width;
+ GTK_VALUE_UINT (*arg) = container->border_width;
break;
case ARG_RESIZE_MODE:
GTK_VALUE_ENUM (*arg) = container->resize_mode;
break;
+ case ARG_REALLOCATE_REDRAWS:
+ GTK_VALUE_BOOL (*arg) = container->reallocate_redraws;
+ break;
default:
arg->type = GTK_TYPE_INVALID;
break;
}
}
+/**
+ * gtk_container_set_border_width:
+ * @container: a #GtkContainer
+ * @border_width: amount of blank space to leave <emphasis>outside</emphasis> the container
+ *
+ * The border width of a container is the amount of space to leave
+ * around the outside of the container. The only exception to this is
+ * #GtkWindow; because toplevel windows can't leave space outside,
+ * they leave the space inside. The border is added on all sides of
+ * the container. To add space to only one side, one approach is to
+ * create a #GtkAlignment widget, call gtk_widget_set_usize() to give
+ * it a size, and place it on the side of the container as a spacer.
+ *
+ **/
void
-gtk_container_border_width (GtkContainer *container,
- guint border_width)
+gtk_container_set_border_width (GtkContainer *container,
+ guint border_width)
{
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_CONTAINER (container));
}
}
+/**
+ * gtk_container_add:
+ * @container: a #GtkContainer
+ * @widget: a widget to be placed inside @container
+ *
+ * Adds @widget to @container. Typically used for simple containers
+ * such as #GtkWindow, #GtkFrame, or #GtkButton; for more complicated
+ * layout containers such as #GtkBox or #GtkTable, this function will
+ * pick default packing parameters that may not be correct. So
+ * consider functions such as gtk_box_pack_start() and
+ * gtk_table_attach() as an alternative to gtk_container_add() in
+ * those cases. A widget may be added to only one container at a time;
+ * you can't place the same widget inside two different containers.
+ **/
void
gtk_container_add (GtkContainer *container,
GtkWidget *widget)
g_return_if_fail (GTK_IS_CONTAINER (container));
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_WIDGET (widget));
- g_return_if_fail (widget->parent == NULL);
+
+ if (widget->parent != NULL)
+ {
+ g_warning ("Attempting to add a widget with type %s to a container of "
+ "type %s, but the widget is already inside a container of type %s",
+ g_type_name (G_OBJECT_TYPE (widget)),
+ g_type_name (G_OBJECT_TYPE (container)),
+ g_type_name (G_OBJECT_TYPE (widget->parent)));
+ return;
+ }
gtk_signal_emit (GTK_OBJECT (container), container_signals[ADD], widget);
}
+/**
+ * gtk_container_remove:
+ * @container: a #GtkContainer
+ * @widget: a current child of @container
+ *
+ * Removes @widget from @container. @widget must be inside @container.
+ * Note that @container will own a reference to @widget, and that this
+ * may be the last reference held; so removing a widget from its
+ * container can destroy that widget. If you want to use @widget
+ * again, you need to add a reference to it while it's not inside
+ * a container, using g_object_ref().
+ **/
void
gtk_container_remove (GtkContainer *container,
GtkWidget *widget)
}
void
-gtk_container_disable_resize (GtkContainer *container)
+gtk_container_dequeue_resize_handler (GtkContainer *container)
{
- g_warning ("gtk_container_disable_resize does nothing!");
-}
-
-void
-gtk_container_enable_resize (GtkContainer *container)
-{
- g_warning ("gtk_container_enable_resize does nothing!");
-}
-
-void
-gtk_container_block_resize (GtkContainer *container)
-{
- g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_CONTAINER (container));
+ g_return_if_fail (GTK_CONTAINER_RESIZE_PENDING (container));
-}
-
-void
-gtk_container_unblock_resize (GtkContainer *container)
-{
- g_return_if_fail (container != NULL);
- g_return_if_fail (GTK_IS_CONTAINER (container));
-
+ container_resize_queue = g_slist_remove (container_resize_queue, container);
+ GTK_PRIVATE_UNSET_FLAG (container, GTK_RESIZE_PENDING);
}
void
node = container->resize_widgets;
- if (node)
- gtk_signal_disconnect_by_func (GTK_OBJECT (container),
- GTK_SIGNAL_FUNC (gtk_container_clear_resize_widgets),
- NULL);
-
while (node)
{
GtkWidget *widget = node->data;
}
}
-gint
-gtk_container_need_resize (GtkContainer *container)
+void
+gtk_container_set_reallocate_redraws (GtkContainer *container,
+ gboolean needs_redraws)
{
- gtk_container_check_resize (container);
- return FALSE;
+ g_return_if_fail (GTK_IS_CONTAINER (container));
+
+ needs_redraws = needs_redraws ? TRUE : FALSE;
+ if (needs_redraws != container->reallocate_redraws)
+ {
+ container->reallocate_redraws = needs_redraws;
+ if (container->reallocate_redraws)
+ gtk_widget_queue_draw (GTK_WIDGET (container));
+ }
}
static GtkContainer*
static gboolean
gtk_container_idle_sizer (gpointer data)
{
+ GDK_THREADS_ENTER ();
+
/* we may be invoked with a container_resize_queue of NULL, because
* queue_resize could have been adding an extra idle function while
* the queue still got processed. we better just ignore such case
* than trying to explicitely work around them with some extra flags,
- * sine it doesn't cause any actual harm.
+ * since it doesn't cause any actual harm.
*/
while (container_resize_queue)
{
GTK_PRIVATE_UNSET_FLAG (widget, GTK_RESIZE_PENDING);
gtk_container_check_resize (GTK_CONTAINER (widget));
}
-
+
+ gdk_window_process_all_updates ();
+
+ GDK_THREADS_LEAVE ();
+
return FALSE;
}
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_CONTAINER (container));
+ /* clear resize widgets for resize containers
+ * before aborting prematurely. this is especially
+ * important for toplevels which may need imemdiate
+ * processing or their resize handler to be queued.
+ */
+ if (GTK_IS_RESIZE_CONTAINER (container))
+ gtk_container_clear_resize_widgets (container);
if (GTK_OBJECT_DESTROYED (container) ||
GTK_WIDGET_RESIZE_NEEDED (container))
return;
-
- if (GTK_IS_RESIZE_CONTAINER (container))
- gtk_container_clear_resize_widgets (container);
-
+
resize_container = gtk_container_get_resize_container (container);
-
+
if (resize_container)
{
- if (GTK_WIDGET_VISIBLE (resize_container))
+ if (GTK_WIDGET_VISIBLE (resize_container) &&
+ (GTK_WIDGET_TOPLEVEL (resize_container) || GTK_WIDGET_DRAWABLE (resize_container)))
{
switch (resize_container->resize_mode)
{
{
GTK_PRIVATE_SET_FLAG (resize_container, GTK_RESIZE_PENDING);
if (container_resize_queue == NULL)
- gtk_idle_add_priority (GTK_PRIORITY_INTERNAL - 1,
+ gtk_idle_add_priority (GTK_PRIORITY_RESIZE,
gtk_container_idle_sizer,
NULL);
container_resize_queue = g_slist_prepend (container_resize_queue, resize_container);
}
GTK_PRIVATE_SET_FLAG (container, GTK_RESIZE_NEEDED);
- if (!resize_container->resize_widgets)
- gtk_signal_connect (GTK_OBJECT (resize_container),
- "size_allocate",
- GTK_SIGNAL_FUNC (gtk_container_clear_resize_widgets),
- NULL);
resize_container->resize_widgets =
g_slist_prepend (resize_container->resize_widgets, container);
break;
case GTK_RESIZE_IMMEDIATE:
GTK_PRIVATE_SET_FLAG (container, GTK_RESIZE_NEEDED);
- if (!resize_container->resize_widgets)
- gtk_signal_connect (GTK_OBJECT (resize_container),
- "size_allocate",
- GTK_SIGNAL_FUNC (gtk_container_clear_resize_widgets),
- NULL);
resize_container->resize_widgets =
g_slist_prepend (resize_container->resize_widgets, container);
gtk_container_check_resize (resize_container);
break;
case GTK_RESIZE_PARENT:
- /* Ignore */
+ /* Ignore, should not be reached */
break;
}
}
else
{
- /* We need to let hidden toplevels know that something
- * changed while they where hidden. For other resize containers,
- * they will get resized when they are shown.
+ /* we need to let hidden resize containers know that something
+ * changed while they where hidden (currently only evaluated by
+ * toplevels).
*/
- if (GTK_WIDGET_TOPLEVEL (resize_container))
- gtk_container_check_resize (resize_container);
+ resize_container->need_resize = TRUE;
}
}
}
{
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_CONTAINER (container));
-
+
gtk_signal_emit (GTK_OBJECT (container), container_signals[CHECK_RESIZE]);
}
gtk_container_real_check_resize (GtkContainer *container)
{
GtkWidget *widget;
+ GtkRequisition requisition;
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_CONTAINER (container));
widget = GTK_WIDGET (container);
- gtk_widget_size_request (widget, &widget->requisition);
+ gtk_widget_size_request (widget, &requisition);
- if (widget->requisition.width > widget->allocation.width ||
- widget->requisition.height > widget->allocation.height)
+ if (requisition.width > widget->allocation.width ||
+ requisition.height > widget->allocation.height)
{
if (GTK_IS_RESIZE_CONTAINER (container))
- {
- gtk_widget_size_allocate (GTK_WIDGET (container),
- >K_WIDGET (container)->allocation);
- gtk_widget_queue_draw (GTK_WIDGET (container));
- }
+ gtk_widget_size_allocate (GTK_WIDGET (container),
+ >K_WIDGET (container)->allocation);
else
gtk_widget_queue_resize (widget);
}
* which is not the case if we got another container queued for
* a resize in our anchestry. also we can skip the whole
* resize_widgets checks if we are a toplevel and NEED_RESIZE.
- * this code implies that our allocation is sufficient for our
+ * this code assumes that our allocation is sufficient for our
* requisition, since otherwise we would NEED_RESIZE.
*/
resize_container = GTK_WIDGET (container);
if (resize_container->parent)
gtk_container_queue_resize (container);
else
- {
- gtk_widget_size_allocate (GTK_WIDGET (container),
- >K_WIDGET (container)->allocation);
- gtk_widget_queue_draw (GTK_WIDGET (container));
- }
+ gtk_widget_size_allocate (GTK_WIDGET (container),
+ >K_WIDGET (container)->allocation);
return;
}
* is insufficient, since we don't need to reallocate below that.
*/
resize_widgets = container->resize_widgets;
- if (resize_widgets)
- gtk_signal_disconnect_by_func (GTK_OBJECT (container),
- GTK_SIGNAL_FUNC (gtk_container_clear_resize_widgets),
- NULL);
container->resize_widgets = NULL;
for (node = resize_widgets; node; node = node->next)
{
widget = node->data;
GTK_PRIVATE_UNSET_FLAG (widget, GTK_RESIZE_NEEDED);
+
gtk_widget_size_allocate (widget, &widget->allocation);
- gtk_widget_queue_draw (widget);
+
gtk_widget_unref (widget);
}
g_slist_free (resize_containers);
}
+/**
+ * gtk_container_forall:
+ * @container: a #GtkContainer
+ * @callback: a callback
+ * @callback_data: callback user data
+ *
+ * Invokes @callback on each child of @container, including children
+ * that are considered "internal" (implementation details of the
+ * container). "Internal" children generally weren't added by the user
+ * of the container, but were added by the container implementation
+ * itself. Most applications should use gtk_container_foreach(),
+ * rather than gtk_container_forall().
+ **/
+void
+gtk_container_forall (GtkContainer *container,
+ GtkCallback callback,
+ gpointer callback_data)
+{
+ GtkContainerClass *class;
+
+ g_return_if_fail (container != NULL);
+ g_return_if_fail (GTK_IS_CONTAINER (container));
+ g_return_if_fail (callback != NULL);
+
+ class = GTK_CONTAINER_GET_CLASS (container);
+
+ if (class->forall)
+ class->forall (container, TRUE, callback, callback_data);
+}
+
+/**
+ * gtk_container_foreach:
+ * @container: a #GtkContainer
+ * @callback: a callback
+ * @callback_data: callback user data
+ *
+ * Invokes @callback on each non-internal child of @container. See
+ * gtk_container_forall() for details on what constitutes an
+ * "internal" child. Most applications should use
+ * gtk_container_foreach(), rather than gtk_container_forall().
+ **/
void
gtk_container_foreach (GtkContainer *container,
GtkCallback callback,
gpointer callback_data)
{
+ GtkContainerClass *class;
+
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_CONTAINER (container));
g_return_if_fail (callback != NULL);
- gtk_signal_emit (GTK_OBJECT (container),
- container_signals[FOREACH],
- callback, callback_data);
+ class = GTK_CONTAINER_GET_CLASS (container);
+
+ if (class->forall)
+ class->forall (container, FALSE, callback, callback_data);
}
typedef struct _GtkForeachData GtkForeachData;
/* first argument */
args[0].name = NULL;
- args[0].type = GTK_OBJECT(child)->klass->type;
- GTK_VALUE_OBJECT(args[0]) = GTK_OBJECT (child);
+ args[0].type = GTK_OBJECT_TYPE (child);
+ GTK_VALUE_OBJECT (args[0]) = GTK_OBJECT (child);
/* location for return value */
args[1].name = NULL;
fdata->callback (fdata->container, fdata->callback_data, 1, args);
}
-void
-gtk_container_foreach_interp (GtkContainer *container,
- GtkCallbackMarshal marshal,
- gpointer callback_data,
- GtkDestroyNotify notify)
-{
- gtk_container_foreach_full (container, NULL, marshal,
- callback_data, notify);
-}
-
void
gtk_container_foreach_full (GtkContainer *container,
GtkCallback callback,
notify (callback_data);
}
-gint
+gboolean
gtk_container_focus (GtkContainer *container,
GtkDirectionType direction)
{
}
void
-gtk_container_set_focus_child (GtkContainer *container,
- GtkWidget *widget)
+gtk_container_set_focus_child (GtkContainer *container,
+ GtkWidget *widget)
{
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_CONTAINER (container));
if (widget)
- g_return_if_fail (GTK_IS_WIDGET (container));
+ g_return_if_fail (GTK_IS_WIDGET (widget));
gtk_signal_emit (GTK_OBJECT (container), container_signals[SET_FOCUS_CHILD], widget);
}
return g_list_reverse (children);
}
-void
-gtk_container_register_toplevel (GtkContainer *container)
+static void
+gtk_container_child_position_callback (GtkWidget *widget,
+ gpointer client_data)
{
- gtk_widget_ref (GTK_WIDGET (container));
- gtk_object_sink (GTK_OBJECT (container));
+ struct {
+ GtkWidget *child;
+ guint i;
+ guint index;
+ } *data = client_data;
+
+ data->i++;
+ if (data->child == widget)
+ data->index = data->i;
}
-void
-gtk_container_unregister_toplevel (GtkContainer *container)
+static gchar*
+gtk_container_child_default_composite_name (GtkContainer *container,
+ GtkWidget *child)
{
- gtk_widget_unref (GTK_WIDGET (container));
+ struct {
+ GtkWidget *child;
+ guint i;
+ guint index;
+ } data;
+ gchar *name;
+
+ /* fallback implementation */
+ data.child = child;
+ data.i = 0;
+ data.index = 0;
+ gtk_container_forall (container,
+ gtk_container_child_position_callback,
+ &data);
+
+ name = g_strdup_printf ("%s-%u",
+ gtk_type_name (GTK_OBJECT_TYPE (child)),
+ data.index);
+
+ return name;
+}
+
+gchar*
+gtk_container_child_composite_name (GtkContainer *container,
+ GtkWidget *child)
+{
+ g_return_val_if_fail (container != NULL, NULL);
+ g_return_val_if_fail (GTK_IS_CONTAINER (container), NULL);
+ g_return_val_if_fail (child != NULL, NULL);
+ g_return_val_if_fail (GTK_IS_WIDGET (child), NULL);
+ g_return_val_if_fail (child->parent == GTK_WIDGET (container), NULL);
+
+ if (GTK_WIDGET_COMPOSITE_CHILD (child))
+ {
+ static GQuark quark_composite_name = 0;
+ gchar *name;
+
+ if (!quark_composite_name)
+ quark_composite_name = g_quark_from_static_string ("gtk-composite-name");
+
+ name = gtk_object_get_data_by_id (GTK_OBJECT (child), quark_composite_name);
+ if (!name)
+ {
+ GtkContainerClass *class;
+
+ class = GTK_CONTAINER_GET_CLASS (container);
+ if (class->composite_name)
+ name = class->composite_name (container, child);
+ }
+ else
+ name = g_strdup (name);
+
+ return name;
+ }
+
+ return NULL;
}
void
}
}
-static gint
+static gboolean
gtk_container_real_focus (GtkContainer *container,
GtkDirectionType direction)
{
g_return_val_if_fail (container != NULL, FALSE);
g_return_val_if_fail (GTK_IS_CONTAINER (container), FALSE);
- /* Fail if the container is insensitive
+ /* Fail if the container is inappropriate for focus movement
*/
- if (!GTK_WIDGET_SENSITIVE (container))
+ if (!GTK_WIDGET_DRAWABLE (container) ||
+ !GTK_WIDGET_IS_SENSITIVE (container))
return FALSE;
return_val = FALSE;
if (GTK_WIDGET_CAN_FOCUS (container))
{
- gtk_widget_grab_focus (GTK_WIDGET (container));
- return_val = TRUE;
+ if (!GTK_WIDGET_HAS_FOCUS (container))
+ {
+ gtk_widget_grab_focus (GTK_WIDGET (container));
+ return_val = TRUE;
+ }
}
else
{
/* Get a list of the containers children
*/
- children = gtk_container_children (container);
+ children = NULL;
+ gtk_container_forall (container,
+ gtk_container_children_callback,
+ &children);
+ children = g_list_reverse (children);
+ /* children = gtk_container_children (container); */
if (children)
{
- /* Remove any children which are insensitive
+ /* Remove any children which are inappropriate for focus movement
*/
tmp_list = children;
while (tmp_list)
{
- if (!GTK_WIDGET_SENSITIVE (tmp_list->data))
+ if (GTK_WIDGET_IS_SENSITIVE (tmp_list->data) &&
+ GTK_WIDGET_DRAWABLE (tmp_list->data) &&
+ (GTK_IS_CONTAINER (tmp_list->data) || GTK_WIDGET_CAN_FOCUS (tmp_list->data)))
+ tmp_list = tmp_list->next;
+ else
{
tmp_list2 = tmp_list;
tmp_list = tmp_list->next;
-
+
children = g_list_remove_link (children, tmp_list2);
g_list_free_1 (tmp_list2);
}
- else
- tmp_list = tmp_list->next;
}
switch (direction)
break;
case GTK_DIR_UP:
case GTK_DIR_DOWN:
- return_val = gtk_container_focus_up_down (container, children, direction);
+ return_val = gtk_container_focus_up_down (container, &children, direction);
break;
case GTK_DIR_LEFT:
case GTK_DIR_RIGHT:
- return_val = gtk_container_focus_left_right (container, children, direction);
+ return_val = gtk_container_focus_left_right (container, &children, direction);
break;
}
return return_val;
}
-static gint
+static gboolean
gtk_container_focus_tab (GtkContainer *container,
GList *children,
GtkDirectionType direction)
return gtk_container_focus_move (container, children, direction);
}
-static gint
-gtk_container_focus_up_down (GtkContainer *container,
- GList *children,
- GtkDirectionType direction)
+static gboolean
+old_focus_coords (GtkContainer *container, GdkRectangle *old_focus_rect)
{
- GtkWidget *child;
- GtkWidget *child2;
- GList *tmp_list;
- gint dist1, dist2;
- gint focus_x;
- gint focus_width;
- guint length;
- guint i, j;
-
- /* return failure if there isn't a focus child */
- if (container->focus_child)
+ GtkWidget *widget = GTK_WIDGET (container);
+ GtkWidget *toplevel = gtk_widget_get_toplevel (widget);
+
+ if (toplevel &&
+ GTK_IS_WINDOW (toplevel) && GTK_WINDOW (toplevel)->focus_widget &&
+ GTK_WIDGET_REALIZED (container) &&
+ GTK_WIDGET_REALIZED (GTK_WINDOW (toplevel)->focus_widget))
{
- focus_width = container->focus_child->allocation.width / 2;
- focus_x = container->focus_child->allocation.x + focus_width;
+ GtkWidget *old_focus = GTK_WINDOW (toplevel)->focus_widget;
+ GdkWindow *old_parent_window = old_focus->parent ? old_focus->parent->window : old_focus->window;
+ GdkWindow *new_parent_window = widget->window;
+ GdkWindow *toplevel_window = toplevel->window;
+
+ *old_focus_rect = old_focus->allocation;
+
+ /* Translate coordinates to the toplevel */
+
+ while (old_parent_window != toplevel_window)
+ {
+ gint dx, dy;
+
+ gdk_window_get_position (old_parent_window, &dx, &dy);
+
+ old_focus_rect->x += dx;
+ old_focus_rect->y += dy;
+
+ old_parent_window = gdk_window_get_parent (old_parent_window);
+ }
+
+ /* Translate coordinates back to the new container */
+
+ while (new_parent_window != toplevel_window)
+ {
+ gint dx, dy;
+
+ gdk_window_get_position (new_parent_window, &dx, &dy);
+
+ old_focus_rect->x -= dx;
+ old_focus_rect->y -= dy;
+
+ new_parent_window = gdk_window_get_parent (new_parent_window);
+ }
+
+ return TRUE;
}
- else
+
+ return FALSE;
+}
+
+typedef struct _CompareInfo CompareInfo;
+
+struct _CompareInfo
+{
+ gint x;
+ gint y;
+};
+
+static gint
+up_down_compare (gconstpointer a,
+ gconstpointer b,
+ gpointer data)
+{
+ const GtkWidget *child1 = a;
+ const GtkWidget *child2 = b;
+ CompareInfo *compare = data;
+
+ gint y1 = child1->allocation.y + child1->allocation.height / 2;
+ gint y2 = child2->allocation.y + child2->allocation.height / 2;
+
+ if (y1 == y2)
{
- focus_width = GTK_WIDGET (container)->allocation.width;
- if (GTK_WIDGET_NO_WINDOW (container))
- focus_x = GTK_WIDGET (container)->allocation.x;
+ gint x1 = abs (child1->allocation.x + child1->allocation.width / 2 - compare->x);
+ gint x2 = abs (child2->allocation.x + child2->allocation.width / 2 - compare->x);
+
+ if (compare->y < y1)
+ return (x1 < x2) ? -1 : ((x1 == x2) ? 0 : 1);
else
- focus_x = 0;
+ return (x1 < x2) ? 1 : ((x1 == x2) ? 0 : -1);
}
+ else
+ return (y1 < y2) ? -1 : 1;
+}
- length = g_list_length (children);
+static gboolean
+gtk_container_focus_up_down (GtkContainer *container,
+ GList **children,
+ GtkDirectionType direction)
+{
+ CompareInfo compare;
+ GList *tmp_list;
- /* sort the children in the y direction */
- for (i = 1; i < length; i++)
+ if (container->focus_child)
{
- j = i;
- tmp_list = g_list_nth (children, j);
- child = tmp_list->data;
+ gint compare_x1;
+ gint compare_x2;
+ gint compare_y;
+
+ /* Delete widgets from list that don't match minimum criteria */
- while (j > 0)
+ compare_x1 = container->focus_child->allocation.x;
+ compare_x2 = container->focus_child->allocation.x + container->focus_child->allocation.width;
+
+ if (direction == GTK_DIR_UP)
+ compare_y = container->focus_child->allocation.y;
+ else
+ compare_y = container->focus_child->allocation.y + container->focus_child->allocation.height;
+
+ tmp_list = *children;
+ while (tmp_list)
{
- child2 = tmp_list->prev->data;
- if (child->allocation.y < child2->allocation.y)
+ GtkWidget *child = tmp_list->data;
+ GList *next = tmp_list->next;
+ gint child_x1, child_x2;
+
+ if (child != container->focus_child)
{
- tmp_list->data = tmp_list->prev->data;
- tmp_list = tmp_list->prev;
- j--;
+ child_x1 = child->allocation.x;
+ child_x2 = child->allocation.x + child->allocation.width;
+
+ if ((child_x2 <= compare_x1 || child_x1 >= compare_x2) /* No horizontal overlap */ ||
+ (direction == GTK_DIR_DOWN && child->allocation.y + child->allocation.height < compare_y) || /* Not below */
+ (direction == GTK_DIR_UP && child->allocation.y > compare_y)) /* Not above */
+ {
+ *children = g_list_delete_link (*children, tmp_list);
+ }
}
- else
- break;
+
+ tmp_list = next;
}
- tmp_list->data = child;
+ compare.x = (compare_x1 + compare_x2) / 2;
+ compare.y = container->focus_child->allocation.y + container->focus_child->allocation.height / 2;
}
-
- /* sort the children in distance in the x direction
- * in distance from the current focus child while maintaining the
- * sort in the y direction
- */
- for (i = 1; i < length; i++)
+ else
{
- j = i;
- tmp_list = g_list_nth (children, j);
- child = tmp_list->data;
- dist1 = (child->allocation.x + child->allocation.width / 2) - focus_x;
+ /* No old focus widget, need to figure out starting x,y some other way
+ */
+ GtkWidget *widget = GTK_WIDGET (container);
+ GdkRectangle old_focus_rect;
- while (j > 0)
+ if (old_focus_coords (container, &old_focus_rect))
{
- child2 = tmp_list->prev->data;
- dist2 = (child2->allocation.x + child2->allocation.width / 2) - focus_x;
-
- if ((dist1 < dist2) &&
- (child->allocation.y >= child2->allocation.y))
- {
- tmp_list->data = tmp_list->prev->data;
- tmp_list = tmp_list->prev;
- j--;
- }
+ compare.x = old_focus_rect.x + old_focus_rect.width / 2;
+ }
+ else
+ {
+ if (GTK_WIDGET_NO_WINDOW (widget))
+ compare.x = widget->allocation.x + widget->allocation.width / 2;
else
- break;
+ compare.x = widget->allocation.width / 2;
}
-
- tmp_list->data = child;
+
+ if (GTK_WIDGET_NO_WINDOW (widget))
+ compare.y = (direction == GTK_DIR_DOWN) ? widget->allocation.y : widget->allocation.y + widget->allocation.height;
+ else
+ compare.y = (direction == GTK_DIR_DOWN) ? 0 : + widget->allocation.height;
}
- /* go and invalidate any widget which is too
- * far from the focus widget.
- */
- if (!container->focus_child &&
- (direction == GTK_DIR_UP))
- focus_x += focus_width;
+ *children = g_list_sort_with_data (*children, up_down_compare, &compare);
- tmp_list = children;
- while (tmp_list)
- {
- child = tmp_list->data;
+ if (direction == GTK_DIR_UP)
+ *children = g_list_reverse (*children);
- dist1 = (child->allocation.x + child->allocation.width / 2) - focus_x;
- if (((direction == GTK_DIR_DOWN) && (dist1 < 0)) ||
- ((direction == GTK_DIR_UP) && (dist1 > 0)))
- tmp_list->data = NULL;
+ return gtk_container_focus_move (container, *children, direction);
+}
- tmp_list = tmp_list->next;
- }
+static gint
+left_right_compare (gconstpointer a,
+ gconstpointer b,
+ gpointer data)
+{
+ const GtkWidget *child1 = a;
+ const GtkWidget *child2 = b;
+ CompareInfo *compare = data;
- if (direction == GTK_DIR_UP)
- children = g_list_reverse (children);
+ gint x1 = child1->allocation.x + child1->allocation.width / 2;
+ gint x2 = child2->allocation.x + child2->allocation.width / 2;
- return gtk_container_focus_move (container, children, direction);
+ if (x1 == x2)
+ {
+ gint y1 = abs (child1->allocation.y + child1->allocation.height / 2 - compare->y);
+ gint y2 = abs (child2->allocation.y + child2->allocation.height / 2 - compare->y);
+
+ if (compare->x < x1)
+ return (y1 < y2) ? -1 : ((y1 == y2) ? 0 : 1);
+ else
+ return (y1 < y2) ? 1 : ((y1 == y2) ? 0 : -1);
+ }
+ else
+ return (x1 < x2) ? -1 : 1;
}
-static gint
+static gboolean
gtk_container_focus_left_right (GtkContainer *container,
- GList *children,
+ GList **children,
GtkDirectionType direction)
{
- GtkWidget *child;
- GtkWidget *child2;
+ CompareInfo compare;
GList *tmp_list;
- gint dist1, dist2;
- gint focus_y;
- gint focus_height;
- guint length;
- guint i, j;
- /* return failure if there isn't a focus child */
if (container->focus_child)
{
- focus_height = container->focus_child->allocation.height / 2;
- focus_y = container->focus_child->allocation.y + focus_height;
- }
- else
- {
- focus_height = GTK_WIDGET (container)->allocation.height;
- if (GTK_WIDGET_NO_WINDOW (container))
- focus_y = GTK_WIDGET (container)->allocation.y;
- else
- focus_y = 0;
- }
+ gint compare_y1;
+ gint compare_y2;
+ gint compare_x;
+
+ /* Delete widgets from list that don't match minimum criteria */
- length = g_list_length (children);
+ compare_y1 = container->focus_child->allocation.y;
+ compare_y2 = container->focus_child->allocation.y + container->focus_child->allocation.height;
- /* sort the children in the x direction */
- for (i = 1; i < length; i++)
- {
- j = i;
- tmp_list = g_list_nth (children, j);
- child = tmp_list->data;
-
- while (j > 0)
+ if (direction == GTK_DIR_LEFT)
+ compare_x = container->focus_child->allocation.x;
+ else
+ compare_x = container->focus_child->allocation.x + container->focus_child->allocation.width;
+
+ tmp_list = *children;
+ while (tmp_list)
{
- child2 = tmp_list->prev->data;
- if (child->allocation.x < child2->allocation.x)
+ GtkWidget *child = tmp_list->data;
+ GList *next = tmp_list->next;
+ gint child_y1, child_y2;
+
+ if (child != container->focus_child)
{
- tmp_list->data = tmp_list->prev->data;
- tmp_list = tmp_list->prev;
- j--;
+ child_y1 = child->allocation.y;
+ child_y2 = child->allocation.y + child->allocation.height;
+
+ if ((child_y2 <= compare_y1 || child_y1 >= compare_y2) /* No vertical overlap */ ||
+ (direction == GTK_DIR_RIGHT && child->allocation.x + child->allocation.width < compare_x) || /* Not to left */
+ (direction == GTK_DIR_LEFT && child->allocation.x > compare_x)) /* Not to right */
+ {
+ *children = g_list_delete_link (*children, tmp_list);
+ }
}
- else
- break;
+
+ tmp_list = next;
}
- tmp_list->data = child;
+ compare.y = (compare_y1 + compare_y2) / 2;
+ compare.x = container->focus_child->allocation.x + container->focus_child->allocation.width / 2;
}
-
- /* sort the children in distance in the y direction
- * in distance from the current focus child while maintaining the
- * sort in the x direction
- */
- for (i = 1; i < length; i++)
+ else
{
- j = i;
- tmp_list = g_list_nth (children, j);
- child = tmp_list->data;
- dist1 = (child->allocation.y + child->allocation.height / 2) - focus_y;
+ /* No old focus widget, need to figure out starting x,y some other way
+ */
+ GtkWidget *widget = GTK_WIDGET (container);
+ GdkRectangle old_focus_rect;
- while (j > 0)
+ if (old_focus_coords (container, &old_focus_rect))
{
- child2 = tmp_list->prev->data;
- dist2 = (child2->allocation.y + child2->allocation.height / 2) - focus_y;
-
- if ((dist1 < dist2) &&
- (child->allocation.x >= child2->allocation.x))
- {
- tmp_list->data = tmp_list->prev->data;
- tmp_list = tmp_list->prev;
- j--;
- }
+ compare.y = old_focus_rect.y + old_focus_rect.height / 2;
+ }
+ else
+ {
+ if (GTK_WIDGET_NO_WINDOW (widget))
+ compare.y = widget->allocation.y + widget->allocation.height / 2;
else
- break;
+ compare.y = widget->allocation.height / 2;
}
-
- tmp_list->data = child;
+
+ if (GTK_WIDGET_NO_WINDOW (widget))
+ compare.x = (direction == GTK_DIR_RIGHT) ? widget->allocation.x : widget->allocation.x + widget->allocation.width;
+ else
+ compare.x = (direction == GTK_DIR_RIGHT) ? 0 : widget->allocation.width;
}
- /* go and invalidate any widget which is too
- * far from the focus widget.
- */
- if (!container->focus_child &&
- (direction == GTK_DIR_LEFT))
- focus_y += focus_height;
-
- tmp_list = children;
- while (tmp_list)
- {
- child = tmp_list->data;
-
- dist1 = (child->allocation.y + child->allocation.height / 2) - focus_y;
- if (((direction == GTK_DIR_RIGHT) && (dist1 < 0)) ||
- ((direction == GTK_DIR_LEFT) && (dist1 > 0)))
- tmp_list->data = NULL;
-
- tmp_list = tmp_list->next;
- }
+ *children = g_list_sort_with_data (*children, left_right_compare, &compare);
if (direction == GTK_DIR_LEFT)
- children = g_list_reverse (children);
+ *children = g_list_reverse (*children);
- return gtk_container_focus_move (container, children, direction);
+ return gtk_container_focus_move (container, *children, direction);
}
-static gint
+static gboolean
gtk_container_focus_move (GtkContainer *container,
GList *children,
GtkDirectionType direction)
GtkWidget *child;
focus_child = container->focus_child;
- gtk_container_set_focus_child (container, NULL);
while (children)
{
{
focus_child = NULL;
- if (GTK_WIDGET_VISIBLE (child) &&
- GTK_IS_CONTAINER (child) &&
- !GTK_WIDGET_HAS_FOCUS (child))
+ if (GTK_WIDGET_DRAWABLE (child) &&
+ GTK_IS_CONTAINER (child))
if (gtk_container_focus (GTK_CONTAINER (child), direction))
return TRUE;
}
}
- else if (GTK_WIDGET_VISIBLE (child))
+ else if (GTK_WIDGET_DRAWABLE (child))
{
if (GTK_IS_CONTAINER (child))
{
*children = g_list_prepend (*children, widget);
}
-static void
-gtk_container_show_all (GtkWidget *widget)
-{
- GtkContainer *container;
-
- g_return_if_fail (widget != NULL);
- g_return_if_fail (GTK_IS_CONTAINER (widget));
- container = GTK_CONTAINER (widget);
-
- /* First show children, then self.
- This makes sure that toplevel windows get shown as last widget.
- Otherwise the user would see the widgets get
- visible one after another.
- */
- gtk_container_foreach (container, (GtkCallback) gtk_widget_show_all, NULL);
- gtk_widget_show (widget);
-}
-
-
-static void
-gtk_container_hide_all (GtkWidget *widget)
-{
- GtkContainer *container;
-
- g_return_if_fail (widget != NULL);
- g_return_if_fail (GTK_IS_CONTAINER (widget));
- container = GTK_CONTAINER (widget);
-
- /* First hide self, then children.
- This is the reverse order of gtk_container_show_all.
- */
- gtk_widget_hide (widget);
- gtk_container_foreach (container, (GtkCallback) gtk_widget_hide_all, NULL);
-}
-
void
gtk_container_set_focus_vadjustment (GtkContainer *container,
GtkAdjustment *adjustment)
adjustment,
(GtkDestroyNotify) gtk_object_unref);
}
+
+
+static void
+gtk_container_show_all (GtkWidget *widget)
+{
+ g_return_if_fail (widget != NULL);
+ g_return_if_fail (GTK_IS_CONTAINER (widget));
+
+ gtk_container_foreach (GTK_CONTAINER (widget),
+ (GtkCallback) gtk_widget_show_all,
+ NULL);
+ gtk_widget_show (widget);
+}
+
+static void
+gtk_container_hide_all (GtkWidget *widget)
+{
+ g_return_if_fail (widget != NULL);
+ g_return_if_fail (GTK_IS_CONTAINER (widget));
+
+ gtk_widget_hide (widget);
+ gtk_container_foreach (GTK_CONTAINER (widget),
+ (GtkCallback) gtk_widget_hide_all,
+ NULL);
+}
+
+
+static void
+gtk_container_expose_child (GtkWidget *child,
+ gpointer client_data)
+{
+ struct {
+ GtkWidget *container;
+ GdkEventExpose *event;
+ } *data = client_data;
+
+ gtk_container_propagate_expose (GTK_CONTAINER (data->container),
+ child,
+ data->event);
+}
+
+static gint
+gtk_container_expose (GtkWidget *widget,
+ GdkEventExpose *event)
+{
+ struct {
+ GtkWidget *container;
+ GdkEventExpose *event;
+ } data;
+
+ g_return_val_if_fail (widget != NULL, FALSE);
+ g_return_val_if_fail (GTK_IS_CONTAINER (widget), FALSE);
+ g_return_val_if_fail (event != NULL, FALSE);
+
+
+ if (GTK_WIDGET_DRAWABLE (widget))
+ {
+ data.container = widget;
+ data.event = event;
+
+ gtk_container_foreach (GTK_CONTAINER (widget),
+ gtk_container_expose_child,
+ &data);
+ }
+
+ return TRUE;
+}
+
+
+/**
+ * gtk_container_propagate_expose:
+ * @container: a #GtkContainer
+ * @child: a child of @container
+ * @event: a expose event sent to container
+ *
+ * When a container receives an expose event, it must send synthetic
+ * expose events to all children that don't have their own GdkWindows.
+ * This function provides a convenient way of doing this. A container,
+ * when it receives an expose event, gtk_container_propagate_expose()
+ * once for each child, passing in the event the container received.
+ *
+ * gtk_container_propagate expose() takes care of deciding whether
+ * an expose event needs to be sent to the child, intersecting
+ * the event's area with the child area, and sending the event.
+ *
+ * In most cases, a container can simply either simply inherit the
+ * ::expose implementation from GtkContainer, or, do some drawing
+ * and then chain to the ::expose implementation from GtkContainer.
+ **/
+void
+gtk_container_propagate_expose (GtkContainer *container,
+ GtkWidget *child,
+ GdkEventExpose *event)
+{
+ GdkEventExpose child_event;
+
+ g_return_if_fail (GTK_IS_CONTAINER (container));
+ g_return_if_fail (GTK_IS_WIDGET (child));
+ g_return_if_fail (event != NULL);
+
+ g_assert (child->parent == GTK_WIDGET (container));
+
+ if (GTK_WIDGET_DRAWABLE (child) &&
+ GTK_WIDGET_NO_WINDOW (child) &&
+ (child->window == event->window))
+ {
+ child_event = *event;
+
+ child_event.region = gtk_widget_region_intersect (child, event->region);
+ if (!gdk_region_empty (child_event.region))
+ {
+ gdk_region_get_clipbox (child_event.region, &child_event.area);
+ gtk_widget_send_expose (child, (GdkEvent *)&child_event);
+ }
+ gdk_region_destroy (child_event.region);
+ }
+}
projects / ~andy / gtk / blobdiff